The Protector hml and HML32 journey Where HML32 has come from - PowerPoint PPT Presentation

The Protector hml and HML32 journey • Where HML32 has come from • Protector and copper • HML32 and copper - powdery mildew in 2014 • Fungal Spray programme for 2014-15

Protector hml and Potassium Bicarbonate trial - 2010/2011 Sileni’s Parkhill Estate – Sauvignon Blanc Chris Henry's study in Hawke's Bay on Sauvignon blanc at Sileni - Efficacy of Botrytis Control on 23/3/2011 105 Fantastic Botrytis Efficacy 100 % Efficacy compared to unsprayed 95 90 85 Percent efficacy compared to unsprayed 80 75 70 65 60 Grower 55 Sauvignon blanc fruit sampled on 27/3/11 at Sileni Standard 50 95 45 25.0 85 40 35 69 67 64 30 58 20.0 25 20 15 29 23.2 10 22.9 15.0 22.6 22.1 21.6 5 21.0 20.2 0 0 Unsprayed grower standard Bicarb 125 Pro+bicarb 250 Pro+bicarb 125 Pro+bicarb125+Su Pro+bicarb 62/650 Pro+bicarb 400 10.0 45% 5.0 Parkhill - Assessment undertaken on 13 January 2011 41.0% Percent bunches infected with Powdery Mildew 2.0 40% 1.9 1.8 1.7 1.6 1.8 1.8 Pot Bicarb 0.0625% until 9 Dec then 0.65% + Protector 0.5% 35% 0.0 Pot Bicarb 0.125% + Protector 0.5% + Sulphur 0.25% Unsprayed Bicarb 125 Pro+bicarb125+Su Pro+bicarb 125 Pro+bicarb 250 Pro+bicarb 400 Pro+bicarb 62/650 Unsprayed Bicarb 125 Pro+bicarb125+Su Pro+bicarb 125 Pro+bicarb 250 Pro+bicarb 400 Pro+bicarb 62/650 Pot Bicarb 0.4% + Protector 0.5% 30% Pot Bicarb 0.25% + Protector 0.5% Pot Bicarb 0.125% alone 25% Pot Bicarb 0.125% + Protector 0.5% 20.8% Average of berry weight g Average of Brix 20% Untreated 13.8% 15% 11.0% 9.2% 10% 4.8% Acceptable Powdery Mildew Efficac y 5% 1.9% 1.8% 1.6% 1.1% 1.0% 0.0% 0.0% 0.0% 0% Pinot Noir Sauvignon Blanc % bunch infection

Protector hml and Copper HortResearch Powdery Mildew Trials on Chardonnay in Hawke's Bay Assessment of Percent Powdery Mildew Treatment 1997 1998 1999 Protector and Copper 4.2 0 2.1 (Protector was at 2% for botrytis studies) Standard Treatments 6.3 3 4.4 Untreated 27.1 94 47.8

Powdery Mildew Eradication Trial Hawke’s Bay 2014

HML32 + Cu + 300 Potassium bicarbonate 11 January 2014

HML32 + Cu + 300 Potassium bicarbonate 12 January 2014

HML32 + Cu + 300 Potassium bicarbonate 26 January 2014

HML32 + Cu + 300 Potassium bicarbonate 8 March 2014

Montepulciano - Near Harvest – 15 April 2014

Verdelho in Auckland - close to harvest 2014 after following a season programme of HML32 and copper

HML32 + sulphur+copper at 10-14 day intervals Spray with 0.5%Protector hml + sulphur at 10-14 day intervals. Add copper if required for the control of other diseases. Final spray with HML32 + sulphur before inflorescences opening. Copper is optional but recommended as it provides a higher level of powdery mildew control

HML32 + sulphur + copper at 10-14 day intervals First application HML32 + sulphur + copper. Follow up with 0.5%Protector hml + sulphur at 10-14 day intervals. Add copper if required for the control of other diseases

HML32 + sulphur + copper at 10-14 day intervals First application HML32 + sulphur + copper. If season presents high risk, continue with HML32 + sulphur + copper at 10-14 day intervals. Otherwise, follow up with 0.5%Protector hml + sulphur at 10-14 day intervals. Add copper if required for the control of other diseases

Fungal Spray Programme Contact Chris Henry or your Farmlands Technical • Prevention better Advisor than cure email:chrishenry@actrix.co.nz • Start early 027 294 1490 • Ensure good coverage • Spray according to risk